Latch for doors of motor cars



July 27, 1926. 1,594,084

C. T. WE-YMANN ILATCH" FOR DOORS .OF MOTOR CARS Fled'NQV, 2.2,' 1924 Figi '-I l l l 'M3 f cable to' the` doorsof motori cars, infwhichf element.; the staple Was.1moreover, Vtrav- .matically fit-in closing po'sition'in a con Patented: July 27,f19`re.'Y

i UNITEDfsTA-r Es...

rainer l cHnn-Lns'ronnns WYMANN, `on raars, iFRANCE.

LATCH non Do'ons yon Moron cans.l y

' Application filed November 22,1924, Serial Nfo.`751,6 52,and iii-ifrance lJanuary 16, 1924. l

Y. i It has 'already beenproposedlito devise fastening means, more particularly` appli.-

'the tvvoconstituent -elem'entsfof the` door vcylindro-conical boltcarried byfone of the said Velements in a staple havinga cylindrica'l bore and dependingl from the associated -ersed by a locking barjvhiclil couldauto-l responding 'perforationf; of 'the' i; [said lfybolt.

In thesev arrangements," `the operation tov .opening the locking bar, to interrupt the mechanical connectionexisting between the-- l bolt and the' staple was effected'by a earnA rigidly secured on the commonaXis of theV inner and outer .operating handles; this cam Was therefore mounted on themovable part of the door, Which carried the cylindro-conical bolt and engaged With aubell crank leverV which was pivoted on the platek of the staple *and permitted. to actuate the f locking'bar in the direction 'of its opening. v The present invention has for its object f Vimprovements in these fastening means for the purpose vof permitting:

' (a) The arrangement of the two .operating handles or members on the staple carrying the locking bar and :on thev:movable` lpanel of the door. l,

Y (t) The establishment oi" the mechanical movement transmitting connections joining`r each of the handles ofthe locking ,bar so as to allow the operation of theinner lian-VV dle Without. acting on the outer handle,

the outer'handle utilizing, fo;1 that purpose,

A l theirV innerv handle for producing the mechanical connection which belongsto the dis- Y placement Aof the said locking' bar. l

As indicated in the foregoing, the post of the Wooden transom of ythe door is provided with the cylindro-c-onica-l bolt 1. This bolt is rigid with an angle' iron 2 extending from` A a plate 3 permitting the bolts tobe secured in position. The vconical part of thebolt has a bevel 4. The door leaf panel receives 'f the c staple (Fig. 1). The latter. is conv stituted by ablock 5 rigid withV a securing j kguide block`v 11.

of the saidstaple` p l. It is obvious that plate in vvliichy isprovided ,a bore 7 y serves as a guide for thecylindrical yloclzfA j Werelocked together by the penetration .ofa

f 71,594,084" OFFICE so"k ing bar9 which is to'enteracorresponding hole of the bolt'1.This lockingbar extends 1n theshape-:oi'` a cylindrical journal '10 which is guided in `a block 11 rigid Withfthe plate 6.. 1 'Aspring 12;is interposed benzveen. v the; bottom ofthe? cylindrical journal 1 0,V and af cheek; y13 obturatingl. the bore of theV At its upper part,

an abutmentl? and can'act on a rollerf18,"

carriedby aflever 19 pivoted onvthev said-A the plate 6 is traversed V'by the rod 14 of the externalfhandlefl, .Which, in the example shown, carries a cam 16.v .This cam 16 bears, uponclosing, Aon' drcal'journal kl() forming an extensionof the locking` bar 9 and is connected, through vits `lower part, to` the inner handle( v VUnder these conditions, the door is closed vby pushing 'back theleaf of the door which carries the staple, on 'the Woodentransom onvvhich is provided the bolt 1. The latter 'enters inthe lbore 7 of the staple 5, pushes back, through 'its bevelled part 4, the locking .bar 9, thus compressing the spring 12.

ss At the end of the movement, thelocking bar 9, under the action of'its spring 12, yenters Y, thecorresponding hole of the bolt land thus if' locks with the AstapleV 5. For opening the door:

The latter therefore pushesy back the locky Y ing bar 9 ,by vcompressing the spring 12. In vthe accompanying dravving and. by'A 2. Or the inneriliandle is acted upon, thus KVangularly moving the pivoting lever 19 and Ythe locking bar 9.. In this case, the outer.

handle 151 is notvsubjected to any Adisplacement. l

1. Either the outer handle '15"is. turned,l Y' `thus moving f angularlyf-the ycani. 16 rigidly Y secured on its rod 14V and, through, the medium of the roller 18, 'the rocking lever l1,9.`

,forv the cam 16V` which is j rigidly connected to the outer handle 15 and i acts on the lever 19 to which is attached the ilmerhandle,V any other suitable mechanicall means might be substituted.

K The fastening device ca providing an ,abutment in the fpath of `the 'noses of the'cam to permit-only a limited 'ro-` tationfof theV cam.V For this purpose arod- 20, adapted to be movedinto-the pathlof` the noses of cam 16,r and operable from the be locked by That claim as my invention and desire to secure by Letters Patent is l. n a door-latch for automobiles and the like, a plate adapted to be secured to a doorpost, a bolt fixed to said plate, a second plate adapted to be secured to a door and provided with a socket to receive' the bolt when the door iQ closed, apertures Vin the socket and bolt adapted to align with each other when the door is Closed", a locking pin occupying the aperture n the socket and arranged to enter the aperture in the bolt when the door is closed7 a spring fori moving thelocking pin toward said socket, a pivotally mounted lever engaging said locking pin and adapted to he actuated from the inner side of the door for moving the locking pin away from the bore of the socket to release' the bolt, a shaft extending through the second plate 'to be actu-aten from the exterior of the door,

an abutn'ient on said lever, and a cam fixed to said shaft and adapted to engage the abutment to permit the operator to actuate the locking pinjfrorn the exterior of the door.

2. A door-latch as claimed in claim l in which the locking pinY has a socket at one end. a housing on the second plate in Which the loclng pin socket is sldably mounted, said Spring being arranged in' the housing andthe last mentioned socket.

3. A door-latch as claimed in claim l including means for locking the cam against rotation by the exterior handle WhileV permitting the locking pin to be actuated from the interio;n by manipulation of'saidlever.

In testimony' whereof I have signedmy name to this speciication.

CHARLES TORRES WnYMAN-N. 

